Brake-shoe.



FITZ WILLI GENT.

BRAK

v APPLICATLON FILED AU .24| 1915.

'L L Patented Nov. 2, 1915.

FITZ WILLIAM SARGENT, 0F MAHWAH, NEW JERSEY,

SHOE & FOUNDRY COMPANY, 0F MAHWAH, NEW

JERSEY.

. at qm ASSIGNOR '10 ERICAN BRE JERSEY, A CORPORATIONOF NEW BRAKE-SHOE.

Application filed August 24'., 1915. Serial No. 47,0425.

To all 'whom z't may concern.'

Be it known that I, Frrz WILLIAM SAR- GENT, a citizen of the United States, and a resident of Mahwah, in the county of Bergen and State of New Jersey, have made and invented certain new and useful Improvements in Brake-Shoes, of which the following is a forcing back for brake shoes, which is provided with an outwardly loopedintegral lug, is liable to spread and the sides of the lug to open up should the body of the shoe become broken and fractured at points between the sides of the lug, as very often happens. This fracturing and breaking of the body of the shoe beneath the lug is particularly liable to occur, as there is no reinforcement lfor this portion of the shoe body; and, furthermore, when the body of the shoe does become fractured and broken at these points, the fragments become detached and separated and fall away from the shoe. ln order, therefore, to reinforce this central portion of the shoe which lies beneath the open extremity of the lug, and to prevent the detachment of the fragments and the opening up of the sides of the lug, and the corresponding spreading. of the back, l provide a tie-plate or plates formed integral with the back and extending across and beneath the lug, and of such shape or form that they become securely anchored within the cast metal of the body of the shoe, and the further or additional fixation and securement thereof is rendered unnecessary.

Other objects and advantages will appear as the description proceeds, wherein it is to be understood that changes in the precise embodiment of the invention can be made within the scope of what isclai'med without departing from the spirit thereof.

The preferred embodiment of my invention is disclosed in the accompanying drawings, wherein Figure 1 is a View in plan of a blank from which my improved reinforcing back is formed. Fig. 2 is a view in side elevation Specification of Letters Patent.

- section taken on the line 4-4 of Fi `5 1s a view 1n Patented Nov. 2, llml.

of the finished back and illustrating' by dotted lines the manner are bent beneath the lug. Fig. 3 1s a view in longltudmal vertical section of a brake shoe havlngembodied therein areinforcing back possesslng the. characteristic features of my inventlon. F 1g. 4 is a View in transverse g. 3. Fig. perspective of a slightly modified form of reinforcing back.

Referring specifically to the several views, the blank disclosed in Fig. 1 includes the oblong plate or body 5, the central and lug formmg portion 6 of which is provided with the key openings 7. Arranged upon oppos1te sides of the key openings 7 are the confronting and lU-shaped slits 8, which define the tongues 9. These tongues widen toward their free extremities, and are arranged upon oppositesides of the longitudinal medial line of the body 5. The blank further includes a number of openings 10 arranged to the sides of the tongues 9, which are adapted to receive the molten metal of the cast body of the shoe therein and increase the anchorage therefor. The blank is somewhat greater in length than that of the finished back, and is outwardly looped at its central portion so as to form the integral and looped lug l1, the openings 7 in which are adapted to receive the shoe-attaching key. The tongues 9 are bent beneath the back, as illustrated by the dotted lines in Fig.i2, and upwardly into contact with the lower surface thereof, so as to define tieplates 12, the same extending across and beyond the sides of the looped integral lug. The tongues 9 being disposed upon opposite sides of the longitudinal medial linev of the blank provide that the tie-plates 12 will be arranged side by side and spaced a slight distance apart, as illustrated in Fig. 4C.

. rlhe reinforcing back, as thus constituted, is placed within a suitable mold, and the body 13 of the shoel cast thereupon, the molten metal of which extends within the openings `14: formed by removal of the tie-plates 12. The molten metal also flows up within and becomes anchored to the side walls of the openings 10, resulting in the in which the tie-plates secure anchorage of the body of the shoe to come securely anchored Within the cast body of the shoe, and prevent the opening up of the lug and the spreading of the back, even though the body of the shoe should become broken and fractured at polnts between the sides of the lug. 1n addition to this holding action of the tie-plates, they further `reinforce the central portion of the body of the shoe which lies beneath the lug 11, and Which portion is necessarily exposed to the greatest strains. l

rllhe modified form of back lillustrated in F ig. 5 is similar to the foregoing, With the exception that but a single tie-plate 12 is provided. This, tie-plate widens toward its free extremity and is accordingly anchored to the cast metal of the body of the shoe, in a manner similar to that of ,the tie-plates above described. j

What l claim is l1. A blank of the class described comprising a body With a lug forming portion and with U-shaped slits defining tongues, said tongues arranged upon opposite sides of said lug forming portion, and upon opposite sides of the longitudinal medial line of said body, said tongues Widening toward their free extremities. 2. A back for brake shoes With a looped lug, a tie-plate projecting across the open extremity of said lug and Widening toward one of its ends.

`4. A back for brake shoes with a looped lug and with integral tie-plates extending in opposite directions across said lug.

A back for brake shoes with a looped lug and with integral tie-plates extending in opposite directions across said lug, said tieplates widening toward their free extremities.

6. A brake shoe comprising a reinforcing back with a lug, a tie-plate formed integral with said back and projecting across the open extremity of said lug, and a wearing body anchored to and reinforced by said lng and said tie-plate.

7. A brake shoe comprising a reinforcing back with a lug, a tie-plate formed integral With said back and projecting across the open extremity of said lug, said tie-plate Widening toward its free extremity, and a Wearing body anchored to and reinforced by said back and said tie-plate.

8. A brake shoe comprising a back with an integral lug, and tie-plates formed integral with said back and extending in opposite directions across and beyond the open extremity of said lug, said tie-plates arranged side by side and Widening toward their free extremities, and a wearing body anchored to said back and tie-plates.

Signed at Mahwah, in the county of Bergen and State. of New Jersey this 20th day of August A. D. 1915.

FITZ WILLIAM SARGENT. 

